Question 1

What is the relationship between the hydroxide ion and a water molecule?

Accepted Answer

A) A hydroxide ion is a water molecule plus a proton. 
B) A hydroxide ion and a water molecule are the same things. 
C) A hydroxide ion is a water molecule minus a hydrogen nucleus. 
D) A hydroxide ion is a water molecule plus two extra electrons. 
A) A hydroxide ion is a water molecule plus a proton. 
B) A hydroxide ion and a water molecule are the same things. 
C) A hydroxide ion is a water molecule minus a hydrogen nucleus. 
D) A hydroxide ion is a water molecule plus two extra electrons.

Question 2

What happens to the corrosive properties of an acid and a base after they neutralize each other? Why?

Accepted Answer

A) The corrosive properties are neutralized because the acid and base no longer exist. 
B) The corrosive properties are unaffected because salt is a corrosive agent. 
C) The corrosive properties are doubled because the acid and base are combined in the salt. 
D) The corrosive properties remain the same when the salt is mixed into water. 
A) The corrosive properties are neutralized because the acid and base no longer exist. 
B) The corrosive properties are unaffected because salt is a corrosive agent. 
C) The corrosive properties are doubled because the acid and base are combined in the salt. 
D) The corrosive properties remain the same when the salt is mixed into water.

Question 3

If you had a 1 M solution of a strong base what would be its pH?

Accepted Answer

A) 1 
B) 6 
C) 7 
D) 8 
E) 13 
A) 1 
B) 6 
C) 7 
D) 8 
E) 13

Question 4

When a hydronium ion concentration equals 1 ×   moles per liter, what is the pH of the solution? Is the solution acidic or basic?

Accepted Answer

A) The pH is of this solution is 4 and it is acidic. 
B) The pH is of this solution is 8 and it is basic. 
C) The pH is of this solution is 6 and it is acidic. 
D) The pH is of this solution is 10 and it is basic. 
A) The pH is of this solution is 4 and it is acidic. 
B) The pH is of this solution is 8 and it is basic. 
C) The pH is of this solution is 6 and it is acidic. 
D) The pH is of this solution is 10 and it is basic.

Question 5

Which of the following statements about strong or weak bases is true?

Accepted Answer

A) A weak base completely separates into ions in water. 
B) A weak base will not react with a strong acid. 
C) A strong base is always corrosive. 
D) A strong base will readily accept protons from even weak acids. 
A) A weak base completely separates into ions in water. 
B) A weak base will not react with a strong acid. 
C) A strong base is always corrosive. 
D) A strong base will readily accept protons from even weak acids.

Question 6

How do you make a proton out of a hydrogen atom?

Accepted Answer

A) remove an electron from a hydrogen atom 
B) remove a proton from a helium nucleus 
C) let the hydrogen atoms undergo fusion 
D) let the hydrogen atoms combine to form a hydrogen molecule and eject an electron 
E) let the hydrogen atoms combine to form a hydrogen molecule and eject a proton 
A) remove an electron from a hydrogen atom 
B) remove a proton from a helium nucleus 
C) let the hydrogen atoms undergo fusion 
D) let the hydrogen atoms combine to form a hydrogen molecule and eject an electron 
E) let the hydrogen atoms combine to form a hydrogen molecule and eject a proton

Question 7

Which of the following statements about strong and weak acids is not true?

Accepted Answer

A) A weak acid is not as corrosive as a strong acid. 
B) A weak acid does dissociate in water. 
C) A strong acid will react with a strong base. 
D) A weak acid will react with a strong base. 
E) All of the above are untrue. 
A) A weak acid is not as corrosive as a strong acid. 
B) A weak acid does dissociate in water. 
C) A strong acid will react with a strong base. 
D) A weak acid will react with a strong base. 
E) All of the above are untrue.

Question 8

What is the main characteristic of a strong acid?

Accepted Answer

A) It is completely dissociated in water. 
B) It readily gives up its proton to a base. 
C) It is corrosive. 
D) It will damage your skin. 
E) all of the above 
A) It is completely dissociated in water. 
B) It readily gives up its proton to a base. 
C) It is corrosive. 
D) It will damage your skin. 
E) all of the above

Question 9

Why is carbon dioxide able to be stored more effectively in ocean water vs. fresh water?

Accepted Answer

A) The pH of the ocean is pretty high and so the carbon dioxide is trapped in a neutralization reaction. 
B) The oceans are large and so you can dissolve more CO2 in them. 
C) Gases are more soluble in cold water than warm water and the oceans are colder than fresh water lakes so you can dissolve more CO2 in them. 
D) The pH of the ocean is very low and so the carbon dioxide is trapped as an acid because like dissolves like. 
E) none of the above 
A) The pH of the ocean is pretty high and so the carbon dioxide is trapped in a neutralization reaction. 
B) The oceans are large and so you can dissolve more CO2 in them. 
C) Gases are more soluble in cold water than warm water and the oceans are colder than fresh water lakes so you can dissolve more CO2 in them. 
D) The pH of the ocean is very low and so the carbon dioxide is trapped as an acid because like dissolves like. 
E) none of the above

Question 10

Which of the above illustrations shows a basic aqueous solution?

Accepted Answer

A) A 
B) B 
C) C 
D) All of the above are neutral solutions. 
E) none of the above 
A) A 
B) B 
C) C 
D) All of the above are neutral solutions. 
E) none of the above

Question 11

A buffer solution can neutralize ________.

Accepted Answer

A) strong acids and bases 
B) only weak acids and bases 
C) salt solutions 
D) with no change in pH 
E) All of the above. 
A) strong acids and bases 
B) only weak acids and bases 
C) salt solutions 
D) with no change in pH 
E) All of the above.

Question 12

If you had a 1 M solution of a weak acid what would be its pH?

Accepted Answer

A) 1 
B) 6 
C) 7 
D) 8 
E) 13 
A) 1 
B) 6 
C) 7 
D) 8 
E) 13

Question 13

Identify the acid or base behavior of each substance in these reactions: HS     +   O ⇌ O   +   S

Accepted Answer

A) HS     acts as an acid,   O acts as a base, O   acts as an acid,   S   acts as a base. 
B) HS     acts as an base,   O acts as a acid, O   acts as an acid,   S   acts as a base. 
C) HS     acts as an acid,   O acts as a base, O   acts as an base,   S   acts as a acid. 
D) HS     acts as an base,   O acts as a acid, O   acts as an base,   S   acts as a acid. 
A) HS     acts as an acid,   O acts as a base, O   acts as an acid,   S   acts as a base. 
B) HS     acts as an base,   O acts as a acid, O   acts as an acid,   S   acts as a base. 
C) HS     acts as an acid,   O acts as a base, O   acts as an base,   S   acts as a acid. 
D) HS     acts as an base,   O acts as a acid, O   acts as an base,   S   acts as a acid.

Question 14

Lakes lying in granite basins, such as those in the northeastern U.S., tend to become acidified by acid rain more readily than lakes lying in limestone basins, such as those found in the midwestern U.S. Why is this so?

Accepted Answer

A) The granite contains acidic minerals that dissolve in the rain water and are added to the lakes. 
B) Since the acidified water cannot percolate through the granite, the acid in the lakes becomes more concentrated. 
C) The limestone, which is calcium carbonate, serves to neutralize the acid in the rain. 
D) There is more acid rain in the northeast than in the midwestern regions of the U.S. 
A) The granite contains acidic minerals that dissolve in the rain water and are added to the lakes. 
B) Since the acidified water cannot percolate through the granite, the acid in the lakes becomes more concentrated. 
C) The limestone, which is calcium carbonate, serves to neutralize the acid in the rain. 
D) There is more acid rain in the northeast than in the midwestern regions of the U.S.

Question 15

As the hydronium ion concentration increases, the pH ________.

Accepted Answer

A) goes down 
B) gets larger 
C) starts to affect the OH- concentration 
D) starts to alter the chemical properties of the water molecules 
E) stays constant 
A) goes down 
B) gets larger 
C) starts to affect the OH- concentration 
D) starts to alter the chemical properties of the water molecules 
E) stays constant

Question 16

The hydroxide ion, HO-, is a ________.

Accepted Answer

A) unique form of water 
B) very strong acid 
C) polyatomic ion 
D) proton donator 
A) unique form of water 
B) very strong acid 
C) polyatomic ion 
D) proton donator

Question 17

When the hydronium ion concentration equals 1 mole per liter, what is the pH of the solution? Is the solution acidic or basic?

Accepted Answer

A) pH = 0, this is an acidic solution. 
B) pH = 1, this is an acidic solution. 
C) pH = 10, this is a basic solution. 
D) pH = 7, this is a neutral solution. 
A) pH = 0, this is an acidic solution. 
B) pH = 1, this is an acidic solution. 
C) pH = 10, this is a basic solution. 
D) pH = 7, this is a neutral solution.

Question 18

What atom in the hydronium ion, H3O⁺, bears the positive charge?

Accepted Answer

A) the hydrogen atom 
B) the oxygen atom 
C) Neither atom bears a positive charge. 
D) Hydrogen and oxygen equally share the positive charge. 
A) the hydrogen atom 
B) the oxygen atom 
C) Neither atom bears a positive charge. 
D) Hydrogen and oxygen equally share the positive charge.

Question 19

Carbon dioxide reacts with water to form ________.

Accepted Answer

A) carbon dioxide and water 
B) carbonic acid 
C) sodium bicarbonate 
D) hydrated carbon 
A) carbon dioxide and water 
B) carbonic acid 
C) sodium bicarbonate 
D) hydrated carbon

Question 20

Qualitatively, what happens to the hydroxide ion concentration if you decrease the hydronium ion concentration?

Accepted Answer

A) The concentration of hydroxide decreases to neutralize the excess hydronium. 
B) The concentration of OH- stays the same but the ratio OH-/H3O+ changes. 
C) The concentration of OH- increases but the ratio stays the same. 
D) The concentration of OH- increases. 
E) none of the above 
A) The concentration of hydroxide decreases to neutralize the excess hydronium. 
B) The concentration of OH- stays the same but the ratio OH-/H3O+ changes. 
C) The concentration of OH- increases but the ratio stays the same. 
D) The concentration of OH- increases. 
E) none of the above

What is the relationship between the hydroxide ion and a water molecule?

What happens to the corrosive properties of an acid and a base after they neutralize each other? Why?

If you had a 1 M solution of a strong base what would be its pH?

When a hydronium ion concentration equals 1 × moles per liter, what is the pH of the solution? Is the solution acidic or basic?

Which of the following statements about strong or weak bases is true?

How do you make a proton out of a hydrogen atom?

Which of the following statements about strong and weak acids is not true?

What is the main characteristic of a strong acid?

Why is carbon dioxide able to be stored more effectively in ocean water vs. fresh water?

Which of the above illustrations shows a basic aqueous solution?

A buffer solution can neutralize ________.

If you had a 1 M solution of a weak acid what would be its pH?

Identify the acid or base behavior of each substance in these reactions: HS + O ⇌ O + S

Lakes lying in granite basins, such as those in the northeastern U.S., tend to become acidified by acid rain more readily than lakes lying in limestone basins, such as those found in the midwestern U.S. Why is this so?

As the hydronium ion concentration increases, the pH ________.

The hydroxide ion, HO^-, is a ________.

When the hydronium ion concentration equals 1 mole per liter, what is the pH of the solution? Is the solution acidic or basic?

What atom in the hydronium ion, H₃O⁺, bears the positive charge?

Carbon dioxide reacts with water to form ________.

Qualitatively, what happens to the hydroxide ion concentration if you decrease the hydronium ion concentration?

About Science

Particles of Matter

Elements of Chemistry

Subatomic Particles

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Oxidations and Reductions Charge the World

Organic Compounds

Nutrients of Life

Medicinal Chemistry

Optimizing Food Production

Protection Water and Air Resources

Capturing Energy

Filters

Exam 10: Acids and Bases in Our Environment

What is the relationship between the hydroxide ion and a water molecule?

What happens to the corrosive properties of an acid and a base after they neutralize each other? Why?

If you had a 1 M solution of a strong base what would be its pH?

When a hydronium ion concentration equals 1 × moles per liter, what is the pH of the solution? Is the solution acidic or basic?

Which of the following statements about strong or weak bases is true?

How do you make a proton out of a hydrogen atom?

Which of the following statements about strong and weak acids is not true?

What is the main characteristic of a strong acid?

Why is carbon dioxide able to be stored more effectively in ocean water vs. fresh water?

Which of the above illustrations shows a basic aqueous solution?

A buffer solution can neutralize ________.

If you had a 1 M solution of a weak acid what would be its pH?

Identify the acid or base behavior of each substance in these reactions: HS + O ⇌ O + S

Lakes lying in granite basins, such as those in the northeastern U.S., tend to become acidified by acid rain more readily than lakes lying in limestone basins, such as those found in the midwestern U.S. Why is this so?

As the hydronium ion concentration increases, the pH ________.

The hydroxide ion, HO-, is a ________.

When the hydronium ion concentration equals 1 mole per liter, what is the pH of the solution? Is the solution acidic or basic?

What atom in the hydronium ion, H3O⁺, bears the positive charge?

Carbon dioxide reacts with water to form ________.

Qualitatively, what happens to the hydroxide ion concentration if you decrease the hydronium ion concentration?

About Science

Particles of Matter

Elements of Chemistry

Subatomic Particles

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Oxidations and Reductions Charge the World

Organic Compounds

Nutrients of Life

Medicinal Chemistry

Optimizing Food Production

Protection Water and Air Resources

Capturing Energy

Filters

The hydroxide ion, HO^-, is a ________.

What atom in the hydronium ion, H₃O⁺, bears the positive charge?